Home / 1,672.41-2,307.58-926.31

Finding the Fourth Proportional to 1,672.41, 2,307.58 and 926.31

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Solution

The fourth proportional to 1,672.41, 2,307.58 and 926.31 is: 1,278.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672.41 : 2,307.58 = 926.31 : x
  2. Step 2: Convert to fraction form
    1,672.41/2,307.58 = 926.31/x
  3. Step 3: Cross multiply
    1,672.41x = 2,307.58 × 926.31
  4. Step 4: Simplify right side
    1,672.41x = 2,137,534.43
  5. Step 5: Solve for x
    x = 2,137,534.43/1,672.41
  6. Step 6: Final answer
    x = 1,278.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.